Îõ³h$4None include-env=Include the value of an environment variable at compile time.A fresh variable of type 8 is declared each time this is computation is evaluated.Note : will crash with * if the environment variable is not found. include-envLike Ç but only prints a warning if the environment variable cannot be found.ÍNB : If the lookup fails, the declared value will contain an _empty string_ . include-envLike  but produces a 'Maybe String'†Use case : The program needs to be compiled against two different environments that may have different sets of environment variables. Æ lets you account for the results of multiple such lookups at runtime. include-env8Lookup a number of environment variables and populate a  with the resultÏNB: if a variable name cannot be found, the corresponding entry will be missing include-env,name of environment variable to be looked up include-envname of new value include-env,name of environment variable to be looked up include-envname of new value include-env,name of environment variable to be looked up include-env-names of environment variable to be looked up  *include-env-0.5.0.0-Hcm1DsfEPnmAurLBOhHTts IncludeEnv.TH includeEnvincludeEnvLenientincludeEnvMaybe includeEnvMapbaseGHC.BaseStringGHC.Errerrorcontainers-0.6.2.1Data.Map.InternalMap